Tensioning device.



c. GORLBY & w. E. WILLIAMS. 'I'ENSIONIHG DEVICE. APPLICATION FILED JUNE9, 1909.

988,444. Patented Apr.4,1911.

' ments,

CLIFTON COBLEY AND WILLIAM E. WILLIA DIRECT AND MESNE ASSIGNMENTS,ATLANTA, GEORGIA.

1VI$, OF TENNILLE, GEORGIA, ASSIGNORS, BY TO CORLEY TEXTILE SPECIALTY00., OF

TENSIONING DEVICE.

Specification of Letters Patent.

Patented Apr. 4, 19111.

Application filed June 9, 1909. Serial No. 501,076.

To all whom it may concern:

Be it known that we, CLirToN Center and \VILLIAM E. \VILLIAMS, Citizensof the United States, residing at Tennille, in the county oflVashington, State of Georgia, have invented a new and useful TensioningDevice, of which the following is a specification.

It is the object of the present invention to provide an improvedtensioning device for use on yarn-winding machines, and the inventionaims, primarily, to provide a simple device which will act automaticallyto relieve the yarn, being 'wound, of strain in the event that it issuddenly placed under tension, such, for example, as when it becomesaccidentally knotted, or when there is but little yarn on the cop.

The invention resides, broadly speaking, in the provision, in a deviceof this class, of alined :fixed guide members and a guide member whichis arranged between the fixed guide members and is gravity-actuated,thereby to normally exert a tension on the yarn being wound. Thisgravity-actuated guide member is normally out of alinement with theother two guide members, but is automatically thrown into alinementtherewith upon the yarn becoming taut, whereupon the yarn will berelieved of the tension normally exerted upon it by the weight of thesaid intermediate guide member.

In the accompanying drawings there is shown a perspective view of thedevice em bodying the present invention, and in the said View thenumeral 5 indicates some portion of the frame-work of a yarn-winding orother cotton-mill machine, upon which portion of the frame-work thedevice embodying the present invention is mounted; it being understoodthat this portion 5 may represent any convenient partof the machine uponwhich the device could be arranged.

The device embodies, among other elea base or attaching plate, which isindicated by the numeral 6, this plate being secured to the frame member5, as is clearly shown in the said figure of the drawings. Upon theattaching plate 6, adjacent each end thereof, there is riveted orotherwise secured, removably or permanently, a guide eye which ispreferably of wire, and which has a shank portion 7, bent to form asingle terminal convolution 8, through which the yarn to be wound ispassed, as will presently be explained. It is preferable that theextremity of the shank, beyond the convolution 8, be extendedsubstantially tangentially from the convolution and that it beuppermost, sucli extremity being indicated by the numeral 9 in the saidfigure of the drawings.

In addition to the guide eyes or members 7, there is provided a memberwhich is supported between the two first described members and is soarranged as to normally exert a tension upon the yarn passedtherethrough and being wound upon the cone in the machine, and thisintermediate guide member is supported upon a bracket arm, which isindicated by the numeral 10 and is secured at one end to the plate 6 ata point substantially midway of the ends thereof and extends directlyforwardly at right angles from this plate and is then bent to extenddownwardly at right angles and parallel to the plate, as indicated bythe numeral 11. Pivotcd to the lower end of the downbent portion 11. ofthe bracket arm 10 is the intermediate guide member just referred to,and this member comprises a shank which is indicated by the numeral 12and through the mid portion of which is passed a pivot, which serves toconnect the member with the lower end of the bracket arm, such pivotbeing indicated by the numeral 13.

As will be readily understood, the shank of the intermediate guidemember has portions extending to both sides of the pivot 13 and one ofthese portions is of greater length than the other and is bent to form aterminal convolution. indicated by the numeral 14, such convolutionbeing identical in form with the convolution 8 of the fixed guidemembers heretofore described.

It will be readily understood from the foregoing that, inasmuch as thatportion of the shank which is bent to form the convolution 14, is ofgreater length than the portion of the shank which lies to the otherside of the pivot 13, there will be a tendency for the same to drop, andit will normally assume a position substantially as shown in full linesin the figure of the drawing.

The yarn which is unwound from the usual form of cop, indicated by thenumeral 15, is threaded through the fixed eye members, and through theintermediate eye memis yet suflicient to secure the result aimed at andnow to be explained.

It will be observed, from an inspection of the drawing, that theintermediate or gravity-actuated guide member of the device is normallyout of alinement, as far as its con veluted guide eye is concerned,withthe fixed guide members, but should the yarn, by accident, becomeknotted and not unwind freely from the cop, and suddenly become taut,the additional strain will result in the intermediate guide member beingswung to a substantially vertical position, such, for example, asillustrated by dotted lines in the said figure of the drawing, in whichposition the convoluted guide eye 14 will be in alinement with, or inother words in a horizontal plane with the fixed guide eyes, whereby theyarn will be relieved of the tension normally exerted upon it by thisintermediate guide member, and hence will not become broken orstretched. As soon as the knot has passed through the guide eyes andthrough the knotter, as shown generally and inclicated by the numeral16, the intermediate guide member will again drop to full line positiondue to the momentary sagging of the yarn and the yarn will be placedunder the normal tension.

From the foregoing description of the invention it will be understoodthat the device embodied in the same may be employed on any cotton millmachinery where yarn is to be wound and may be positioned at anyconvenient point so long as the yarn may be of the said guide members,one of said guide members being centrally over the spindle from whichthe yarn is being unwound, and the said gravity member being adapted tobe swung to position with its guide eye in alinement with the saidyarn-engaged portions of the said guide members When the yarn guidedthereby is placed under increased tension.

In testimony that we claim the foregoing as our own, we have heretoaffixed our signatures in the presence of two witnesses.

CLIFTON CORLE Y. lVILLIAM E. WILLIAMS.

lVitnesses R. O. BARGE, F. C. U. KRAMER, J r.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

